Major audio issues in CC2018 12.1 and 12.1.1

Along with the other issues I've listed in previous threads, I have now discovered an issue with solo'ing and and muting of audio tracks.

Whilst trying to figure out which track was the culprit for the below issue, I found another issue. When selecting on track to solo the audio meters still show another track active, but audio is constant as if it's playing the glitch, but no sound is actually heard.

At this point I am rolling back to the last version of 2017 as none of the 2018 versions have been stable enough to work in.

Other issues include sending to After Effects which creates a new composition, but the video file does not get sent with it, so the comp is empty. Sound stops working when scrubbing back and forth through timeline and a reboot is required, this is a regular issue and no work around. Audio glitch on tracks that have blank areas needs to be filled with null audio clips to stop the glitch as you can hear below.

Adobe, please could someone investigate these issue and get them fixed ASAP?